Skip to main content
No exploitation reportedFix available

CVE-2021-31597

No exploitation reported by the sources we read.

  • Published2021-04-23
  • Fixed in1.6.1
  • WeaknessCWE-295

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

The xmlhttprequest-ssl package before 1.6.1 for Node.js disables SSL certificate validation by default, because rejectUnauthorized (when the property exists but is undefined) is considered to be false within the https.request function of Node.js. In other words, no certificate is ever rejected.

Timeline

dates in UTC
  1. 2021-04-2300:15CVE publishedNVD

Versions per branch

NVD · OSV
Xmlhttprequest-ssl project xmlhttprequest-ssl
BranchAffectedFixed in
1.6< 1.6.11.6.1

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • js-jqueryAzure Linux:3all versions · no fixed version listed
  • node-xmlhttprequest-sslUbuntu:20.04:LTSall versions · no fixed version listed
  • node-xmlhttprequest-sslUbuntu:18.04:LTSall versions · no fixed version listed
  • xmlhttprequest-sslTuxCare:npmfrom 1.5.5-tuxcare.0 · fixed in 1.5.5-tuxcare.1
  • xmlhttprequest-sslTuxCare:npmfrom 1.5.3-tuxcare.0 · fixed in 1.5.3-tuxcare.1
  • xmlhttprequest-sslTuxCare:npmfrom 1.5.1-tuxcare.0 · fixed in 1.5.1-tuxcare.1

Vendor advisories

  • CVE-2021-31597 Red Hat Product Security1 known affected

    xmlhttprequest-ssl: SSL certificate validation disabled by default

    quay/quay-rhel8 as a component of Red Hat Quay 3

Full record on NVD

Fix

  1. Update Xmlhttprequest-ssl project xmlhttprequest-ssl to 1.6.1
  2. No fix available, says the vendor Red Hat Product Security CVE-2021-31597 · 1 productFix deferred

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

  • NVDCVSS 3.19.4read 2026-10-23
  • NVDCVSS 2.07.5read 2026-10-23
  • NVDweakness (CWE)CWE-295read 2026-10-23
  • FIRST EPSSEPSS score2.0 %2026-11-08
  • OSVaffected packages—
  • GitHub AdvisoriesadvisoryCRITICAL2021-05-20

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
Published
2021-04-23
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-72mh-269x-7mh5

Frequently asked questions

What is CVE-2021-31597?

The xmlhttprequest-ssl package before 1.6.1 for Node.js disables SSL certificate validation by default, because rejectUnauthorized (when the property exists but is undefined) is considered to be false within the https.request function of Node.js. In other words, no certificate is ever rejected.

Is CVE-2021-31597 actively exploited?

Active exploitation of CVE-2021-31597 has not been confirmed. Its EPSS score was 2.0% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-31597?

CVE-2021-31597 has a CVSS v3 base score of 9.4 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L.

Running xmlhttprequest-ssl? Hear about its next vulnerability

Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».

Get alerts for this productCISA KEV additions, November 2026Search CVEs

No credit card required · No monthly cap on website lookups · 250 API requests/month

Go further

Related vulnerabilities

Same product first, then the same vendor advisory and the same publication week.

Back to CVE Database

Sources for this record